<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="书籍名称" prop="bookName">
        <el-input
          v-model="queryParams.bookName"
          placeholder="请输入书籍名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="作者" prop="author">
        <el-input
          v-model="queryParams.author"
          placeholder="请输入作者"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="出版社" prop="publish">
        <el-input
          v-model="queryParams.publish"
          placeholder="请输入出版社"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="ISBN码" prop="isbn">
        <el-input
          v-model="queryParams.isbn"
          placeholder="请输入ISBN码"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="出版时间" prop="pubDate">
        <el-date-picker clearable
                        v-model="queryParams.pubDate"
                        type="date"
                        value-format="yyyy-MM-dd"
                        placeholder="请选择出版时间"
        >
        </el-date-picker>
      </el-form-item>
      <el-form-item label="书籍类别" prop="categoryId">
        <el-select v-model="queryParams.categoryId"
                   placeholder="请选择书籍类别"
                   clearable
                   @keyup.enter.native="handleQuery"
        >
          <el-option v-for="item in categoryList" :key="item.id" :value="item.id" :label="item.categoryName"/>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:book:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:book:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:book:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:book:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="bookList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="书籍名称" align="center" prop="bookName"/>
      <el-table-column label="作者" align="center" prop="author"/>
      <el-table-column label="出版社" align="center" prop="publish"/>
      <el-table-column label="ISBN码" align="center" prop="isbn"/>
      <el-table-column label="封面" align="center" prop="coverImage" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.coverImage" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="出版时间" align="center" prop="pubDate" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.pubDate, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="书籍类别" align="center" prop="categoryId" :formatter="tableFormatter"/>
      <el-table-column label="库存" align="center" prop="count"/>
      <el-table-column label="价格" align="center" prop="price"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-view"
            @click="handleView(scope.row)"
            v-hasPermi="['system:book:info']"
          >查看
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:book:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:book:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改书籍对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="40%" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="书籍名称" prop="bookName">
              <el-input v-model="form.bookName" placeholder="请输入书籍名称" :disabled="isView"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="作者" prop="author">
              <el-input v-model="form.author" placeholder="请输入作者" :disabled="isView"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="出版社" prop="publish">
              <el-input v-model="form.publish" placeholder="请输入出版社" :disabled="isView"/>
            </el-form-item>
          </el-col>
        </el-row>
         <el-form-item label="封面">
          <img
            v-if="isView"
            :src="'/dev-api/' + form.coverImage"
            style="display: block; max-width: 30%;"
           alt="图片"/>
          <image-upload v-else v-model="form.coverImage"/>
        </el-form-item>
        <el-form-item v-if="!isView"  label="书籍图片" prop="bookImages">
          <image-upload  v-model="form.bookImages"/>
        </el-form-item>
        <el-form-item label="出版时间" prop="pubDate">
          <el-date-picker clearable
                          v-model="form.pubDate"
                          type="date"
                          value-format="yyyy-MM-dd"
                          placeholder="请选择出版时间"
                          :disabled="isView"
          >
          </el-date-picker>
        </el-form-item>
        <el-form-item label="书籍类别" prop="categoryId">
          <el-select v-model="form.categoryId" :disabled="isView">
            <el-option v-for="item in categoryList" :key="item.id" :value="item.id" :label="item.categoryName" />
          </el-select>
        </el-form-item>
        <el-form-item label="简介" prop="introduction">
          <el-input type="textarea"  :rows="5" v-model="form.introduction" :disabled="isView" />
        </el-form-item>
        <el-form-item label="库存" prop="count">
          <el-input v-model="form.count" placeholder="请输入库存" :disabled="isView"/>
        </el-form-item>
        <el-form-item label="价格" prop="price">
          <el-input v-model="form.price" placeholder="请输入价格" :disabled="isView"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listBook, getBook, delBook, addBook, updateBook } from '@/api/system/book'
import { listCategory } from '@/api/system/category'
import item from '@/layout/components/Sidebar/Item'

export default {
  name: 'Book',
  data() {
    return {
      isView: false,
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 书籍表格数据
      bookList: [],
      // 分类
      categoryList: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        bookName: null,
        author: null,
        publish: null,
        isbn: null,
        introduction: null,
        coverImage: null,
        bookImages: null,
        viewNumber: null,
        pubDate: null,
        categoryId: null,
        count: null,
        price: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        bookName: [
          { required: true, message: '书籍名称不能为空', trigger: 'blur' }
        ],
        author: [
          { required: true, message: '作者不能为空', trigger: 'blur' }
        ],
        publish: [
          { required: true, message: '出版社不能为空', trigger: 'blur' }
        ],
        isbn: [
          { required: true, message: 'ISBN码不能为空', trigger: 'blur' }
        ],
        coverImage: [
          { required: true, message: '封面不能为空', trigger: 'blur' }
        ],
        bookImages: [
          { required: true, message: '书籍图片不能为空', trigger: 'blur' }
        ],
        categoryId: [
          { required: true, message: '书籍类别不能为空', trigger: 'blur' }
        ],
        introduction: [
          { required: true, message: '简介不能为空', trigger: 'blur' }
        ],
        pubDate: [
          { required: true, message: '出版时间不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getList()
    this.getCategoryList()
  },
  methods: {
    tableFormatter(row, col) {
      if (col.property === 'categoryId') {
        const val = this.categoryList.find(item => item.id === row.categoryId)
        return val ? val.categoryName : ''
      }
    },
    /** 查询书籍列表 */
    getList() {
      this.loading = true
      listBook(this.queryParams).then(response => {
        this.bookList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    async getCategoryList() {
      const res = await listCategory({
        pageNum: 1,
        pageSize: 9999,
      })
      this.categoryList = res.rows
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        bookName: null,
        author: null,
        publish: null,
        isbn: null,
        introduction: null,
        coverImage: null,
        bookImages: null,
        viewNumber: null,
        pubDate: null,
        categoryId: null,
        count: null,
        price: null
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.isView = false
      this.reset()
      this.open = true
      this.title = '添加书籍'
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.isView = false
      this.reset()
      this.form.level = 2
      const id = row.id || this.ids
      getBook(id).then(response => {
        this.form = response.data
        this.open = true
        this.title = '修改书籍'
      })
    },
    /** 查看操作 */
    handleView(row) {
      this.form.level = 2
      this.isView = true
      const id = row.id || this.ids
      getBook(id).then(response => {
        this.form = response.data
        this.open = true
        this.title = '查看书籍'
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateBook(this.form).then(response => {
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addBook(this.form).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids
      this.$modal.confirm('是否确认删除书籍编号为"' + ids + '"的数据项？').then(function() {
        return delBook(ids)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/book/export', {
        ...this.queryParams
      }, `book_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
